Peter Singer is the Ira W. Decamp Professor of Bioethics at Princeton and Laureate Professor at the University of Melbourne. His books include Animal Liberation, Practical Ethics, The Most Good You Can Do, and, most recently, Famine, Affluence, and Morality. (May 2016)

Follow Peter Singer on Twitter: @PeterSinger.


Open the Cages!

The Humane Economy: How Innovators and Enlightened Consumers Are Transforming the Lives of Animals

by Wayne Pacelle
In The Humane Economy Wayne Pacelle, president and CEO of the country’s largest animal protection organization, the Humane Society of the United States, describes how “capitalism at its best” is a force against animal suffering, “applying human creativity to answer the demands of a morally informed market.” Is he right?

The Troubled Life of Nim Chimpsky

Joyce Butler speaking in sign language with Nim Chimpsky, 1970s

Project Nim

a film directed by James Marsh
“Men have forgotten this truth,” said the fox. “But you must not forget it. You become responsible, forever, for what you have tamed.” —Antoine de Saint-Exupéry, The Little Prince Perhaps Herbert Terrace, professor of psychology at Columbia University, and director of the experiment that is the subject of Project Nim, …


The Death of Aaron Swartz

Access to the Internet, and the prosecution of Aaron Swartz for the crimes he was alleged to have committed in advancing that cause, are not the only, and perhaps not even the most important, issues raised by Swartz’s death. A third is depression.

The Troubled Life of Nim Chimpsky

Laura-Ann Petitto signing with Nim

Project Nim, a new documentary by James Marsh, tells the sad story of a scientist’s irresponsible treatment of Nim, the chimp he tamed—or more strictly, whose upbringing in a human family he organized—and it raises important issues about the distinction between humans and animals, about our attitudes toward animals, and about scientific objectivity (or the lack thereof) in behavioral research.